1. International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011
2. Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510
3. CREST, Japan Science and Technology Agency (JST), Chiyoda-ku, Tokyo 102-0076
4. Institute for Protein Research, Osaka University, Suita, Osaka 565-0871